Measurement of time-dependent CP asymmetries and constraints on $\sin(2\beta + \gamma)$ with partial reconstruction of $B^0 \to D^{*\mp} \pi^\pm$ decays - INSPIRE

DataBETA

Measurement of time-dependent CP asymmetries and constraints on $\sin(2\beta + \gamma)$ with partial reconstruction of $B^0 \to D^{*\mp} \pi^\pm$ decays

BaBar

Collaboration

Oct, 2003

7 pages

Published in:

Phys.Rev.Lett. 92 (2004) 251802

e-Print:

hep-ex/0310037 [hep-ex]

DOI:

10.1103/PhysRevLett.92.251802

PDG:

\vert

(2\beta

\gamma )\vert

Report number:

SLAC-PUB-10204,
BABAR-PUB-03-033

Experiments:

SLAC-PEP2-BABAR

View in:

reference search37 citations

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Abstract:

We present a measurement of time-dependent CP-violating asymmetries in decays of neutral B mesons to the final states D*-+ pi+-, using approximately 82 million B B bar events recorded by the BABAR experiment at the PEP-II e+ e- storage ring. Events containing these decays are selected with a partial reconstruction technique, in which only the high-momentum pi+- from the B decay and the low-momentum pi-+ from the D*-+ decay are used. We measure the amplitude of the asymmetry to be -0.063 +- 0.024(stat.) +- 0.014(syst.) and compute bounds on |sin(2beta + gamma)|.

11.30.Er
12.15.Hh
13.25.Hw
electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production
B0: hadronic decay
D*(2010)
pi: momentum spectrum

References(18)

Figures(0)

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BaBar

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